Automobile rim-securing means



Feb. 12 1924.

C. B. THOMAS AUTOMOBILE RIM SECURING MEANS Filed Feb. 24. 1923 2 Sheets-Sheet 1 'aWVM Feb; 12 1924. 1,483,698

C. B. THOMAS AUTOMOBILE RIM SECURING MEANS Filed Feb. 24. 1923 2 Sheets-Sheet '2 lgnnnnngw 5/ "res :1;- rFi CHARLES E. THOMAS, OF ALTO, TEXAS, ASSIGNOB OF ONE-HALF TO 'WILLIAJL'E BLANTON,

or ALTO, TEXAS.

AUTOMOBILE li-IliI-SECUR-III G IiIEANS.

Application filed February 24,

is especially desirable for use with pneumatic tires on the wheels of motor vehicles.

An object of the invention is to provide a demountable rim which is characterized by durability yet one which permits the expeditious removal of the tire and likewise facile and expeditious replacement of the same.

A further object of the invention is to provide a demountable rim which is detachably engaged with the telly of the wheel in a manner which prevents frictional engagement of the rim with the felly thereby permitting the rim to be readily removed from the telly when desired.

The above and other objects of this invention will be apparent from thefollowing description taken in connection with the accompanying drawings wherein Fig. 1 is a fragmentary side elevational view of a wheel embodying this invention;

Fig. 2 is a sectional. view taken on the line 2-2 of Fig. 1 looking in the direction of the arrows;

Fig. 3 is a transverse sectional view taken through the tire rim and clamping ring;

Fig. 4 is a transverse sectional view of a bearing ring used in the present invention;

Fig. 5 is a transverse sectional view of a modified form of demountable rim illustrating its application;

Fig. 6 is a transverse sectional. view of the tire rim and clamping ring shown in Fig. 5; and

Fig. 7 is a transverse sectional view of the bearing ring shown in Fig. 5.

In the drawings a wheel 8 is shown which may be of standard configuration except that the folly 9 thereof is provided with a recess or groove 10 in the outer wall thereof while a recess or groove 11 is formed on the inner wall of the felly. The groove 11 is relatively shallower than the groove 10. By preference, the folly is equipped with Serial No. 620,977.

wear plate 12 which extends downwardly into the groove 10 and around the periphery of the felly.

Mounted on the telly 9 but spaced therefrom is a tire rim 13 the inner lateral inargin of which is bent upwardly at right angles to provide a tire holding flange 1%.

An annular rib 15 is formed on the inner periphery of the rim 13 adjacent the outer margin of the rim and is adapted for engager'nent in. the groove 10 as shown in Fig. 2. The rib is provided with a series of screw-threaded recesses or openings such as shown at 16 in Fig. 2 and at 17 in Fig. 3 for a purpose hereinafter set forth. It will be noted that the rib 15 is appreciably wider than the depth of the recess 10 so as to space the rim 13 from the outer periphery of the folly 9.

In order to retain the rim 13 spaced from the folly a bearing ring 18 is provided the outer periphery of which is beveled as shown at 19. Upon reference to Fig. 2 of the drawings, it will be apparent that the inner terminus of the beveled face of the bearing ring is coincident with the outer periphery of the wear plate 12. Consequently, the tire rim 13 may be first mounted on the outer periphery of the folly 9 after which the exertion of pressure thereon inwardly will cause the rim to ride upwardly on the beveled periphery 19 into the position shown in Fig. 2.

In order to secure the bearing ring 18 and rim 13 to the folly, bolts 20 are provided each of which extends through an opening 21 formed in the bearing ring and transversely through the felly 9 into engagement with the wall of a recess 16 formed in the annular rib 15 of the tire rim. The heads of the bolts extend on the inside of the wheel while the opposite ends are concealed by a form is shown consisting especially in providing a Wider bearing ring 18 the beveled periphery 19 of which extends appreciably beyond the enter peiphery 01? the telly 9. Moreoven in the modified form of invention shown in 6 and 7 the tire rim 13 has a portion of its inner periphery undercut to complement the beveled face 19 of the bearing ring. Moreover, the telly 9' has the groove 10 thereof beveled tor engagement with the complementally ilormed inner periphery oi the rib 15. Also the clamping ring 22 has a portion 0; its inner face obliquely offset indicated at 25 tor engagement with a corresponding portion of the tire rim 13 outside or the rib l5.

The above construction permits the tire to be expeditiously removed by simply disengaging the bolts 23 so as to permit removal of the clamping ring. When it is desired to remove the tire rim the bolts 20 are disengaged thereby pern iitting removal of the tire rim without ditiioulty since in either form of the invention herein shown the tire rim is positively held in spaced relation to the telly of the wheel at all times.

Various changes may be made in this device Within the scope of the appended claims.

.Vhat is claimed is 1.. In combination a tell-y provided at each side with a groove, a rim surrounding and spaced from said telly and having an inwardly extending flange projecting into one or said grooves, a bearing ring projecting from the telly and engaging the inner face of the rim, said ring extending into the other of said grooves and said flange and ring adapted to be connected to said "telly for securing the rim therewith.

2. .ln combination a telly provided at each side with a groove, a rim. surrounding and spaced from said telly and having an inwardly extending flange projecting into one of said grooves, a bearing ring projecting from the folly and engaging the inner face of the rim, said ring extending into the other of said grooves, and securing devices extending through said ring and telly and engaging in said flange for securing said rim to the felly.

In testimony whereof I afiix my signature.

CHARLES B. THOMAS 

